NOTES ON CRASSULA. 481 



of the pedicels are two opposite bracts. The sepals are blunt and 

 shorter than the sepals. 



"Cannaland, ad Lange Kloof" (Thunberg). 



It is the Gluhulea mollis of Haworth, and is taken up under that 

 name by DeCaudolle (Prodr. iii. 392), whose diagnosis is cited by 

 Harvey among his " species unknown," with no reference to Thun- 

 berg's original description. Dryauder (in Solander MSS.) says: — 

 " Planta nostra ex horto Kewensi in omnibus cum descriptione 

 Thunbergii convenit, prater caulem vix angulatum, ut Thunb. 

 suam describit." 



C. MONTANA. In herbarium from Masson, written up as Thun- 

 berg's plant by Dryauder. Unknown to Harvey. Caspitose. Leaves 

 radical, ovate, acute, thin, concave, ciliate on the edge, glabrous. 

 Flowering stem erect, slender, about f in. high, bearing about 

 \ in. from the head of flowers two connate, ciliate bracts. Flowers 

 capitately congested. 



" In summo monte Bockland" (Thunberg). 



Closely allied to C. Cuuperi Kegel, Gartenjiora (1874), 36, t. 786, 

 and C. ciitta N. E. Brown in Kew Bulletin, 1895, 145. 



C. PYRAMiDALis. A Specimen from Masson of this plant is re- 

 ferred by Dryander to Thunberg's description and figure, with which 

 it exactly corresponds. 



C. KAMosA. We have in the Herbarium the type of C. ramosa 

 Hort. Kew., which does not appear to be Thunberg's plant. We 

 shall deal with this later when considering Alton's plants. 



C. TOMENTOSA. Wc havc three specimens from Masson named 

 by Dryander, and referred by him to Thunberg's description, from 

 which they do not materially differ. Thunberg collected it at 

 Hantum — a locality not cited by Harvey. The specimens from 

 Namaqualand (Whitehead) representing this species in Harvey's 

 lierbarium differ widely from Masson's plant, being taller and 

 of stouter habit, with a branched inflorescence (branches ^-i in. 

 long) and markedly striate stem. On the t^ame sheet with this is 

 a plant from Wallich, possessing all these characteristics in more 

 extreme forms ; tliis, however, is not cited in the Flora. We are 

 of opinion that Masson's plant accords better with Thunberg's 

 description than either of the foregoing, and that the plant de- 

 scribed by Harvey is different ; but the final settlement of this 

 question may be left to a future monographer. 



II. — Species described in Aiton's ' Hortus Kewensis,' 1789. 



The plants described in Aiton's Hortus Kewensis are, we think, 

 lightly cited as of " Ait.," except in the cases where Robert Brown 

 is distinctly mentioned as the authority, e.r/. in Crucifera. It is of 

 course well known that Solander and Dryander were largely re- 

 sponsible for the botany of the work, but their names do not appear 

 on the title-page or in connection with any definite species, and it 

 is impossible to tell in every case which of the two is responsible. 

 It has been supposed that Solander collaborated in the first edition. 



Journal of Botany. — Vol. 35. [Dec, 1897. > 2 i 



